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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.38 by root, Tue Mar 6 19:02:36 2007 UTC vs.
Revision 1.48 by root, Sat Jun 9 23:18:17 2007 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (C) 2001 Mark Wedel 5 * Copyright (©) 2001,2007 Mark Wedel
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software; you can redistribute it and/or modify it
9 * it under the terms of the GNU General Public License as published by 9 * under the terms of the GNU General Public License as published by the Free
10 * the Free Software Foundation; either version 2 of the License, or 10 * Software Foundation; either version 2 of the License, or (at your option)
11 * (at your option) any later version. 11 * any later version.
12 * 12 *
13 * This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful, but
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * GNU General Public License for more details. 16 * for more details.
17 * 17 *
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License along
19 * along with this program; if not, write to the Free Software 19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 * 21 *
22 * The author can be reached via e-mail to <crossfire@schmorp.de> 22 * The authors can be reached via e-mail to <crossfire@schmorp.de>
23 */ 23 */
24 24
25/** 25/**
26 * \file 26 * \file
27 * Socket general functions 27 * Socket general functions
… …
46#include <unistd.h> 46#include <unistd.h>
47#include <arpa/inet.h> 47#include <arpa/inet.h>
48 48
49#include <algorithm> 49#include <algorithm>
50 50
51// use relatively small values, as we do not expect to receive much,
52// and we do userspace write buffering
53// 8kb limits throughput to roughly 66kb/s
54#define SOCKET_RCVBUF 8192
55#define SOCKET_SNDBUF 16384
56
51sockvec clients; 57sockvec clients;
52 58
53/** 59/**
54 * Initializes a connection. Really, it just sets up the data structure, 60 * Initializes a connection. Really, it just sets up the data structure,
55 * socket setup is handled elsewhere. We do send a version to the 61 * socket setup is handled elsewhere. We do send a version to the
56 * client. 62 * client.
57 */ 63 */
58client::client (int fd, const char *peername) 64client::client (int fd, const char *peername)
59: fd (fd), host (strdup (peername)), 65: fd (fd), host (strdup (peername)),
60 socket_ev (this, &client::socket_cb), 66 socket_ev (this, &client::socket_cb),
61 cmd_ev (this, &client::cmd_cb), 67 cmd_ev (this, &client::cmd_cb)
62 cc_inv (this), cc_other (this)
63{ 68{
64 refcnt_inc (); // the socket is an external reference 69 refcnt_inc (); // the socket is an external reference
70
71 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
65 72
66 { 73 {
67 struct linger linger_opt; 74 struct linger linger_opt;
68 75
69 linger_opt.l_onoff = 0; 76 linger_opt.l_onoff = 0;
70 linger_opt.l_linger = 0; 77 linger_opt.l_linger = 0;
71 78
72 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 79 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
73 LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); 80 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
74 } 81 }
75 82
76 { 83 {
84 int val;
85
86#ifdef SO_RCVBUF
87 val = SOCKET_RCVBUF;
88 if (setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof (val)))
89 LOG (llevError, "SO_RCVBUF: %s\n", strerror (errno));
90#endif
91
92#ifdef SO_SNDBUF
93 val = SOCKET_SNDBUF;
94 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof (val)))
95 LOG (llevError, "SO_SNDBUF: %s\n", strerror (errno));
96#endif
97
98#ifdef IP_TOS
77 int val = IPTOS_LOWDELAY; 99 val = IPTOS_LOWDELAY;
78
79 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) 100 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
80 LOG (llevError, "IP_TOS: %s\n", strerror (errno)); 101 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
81 } 102#endif
82 103
83 { 104#ifdef TCP_NODELAY
84 int val = 1; 105 val = 1;
85
86 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) 106 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
87 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); 107 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
108#endif
109
110 // set some very aggressive keepalive parameters
111#ifdef TCP_KEEPIDLE
112 val = 1;
113 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
114 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
115#endif
116
117#ifdef TCP_KEEPCNT
118 val = 3;
119 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
120 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
121#endif
122
123#ifdef TCP_KEEPINTVL
124 val = 1;
125 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
126 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
127#endif
128
129 // try to find the mss value in use
130#ifdef TCP_MAXSEG
131 socklen_t sl = sizeof (val);
132 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
133 mss = val;
134#endif
88 } 135 }
89
90#ifdef __linux__
91 {
92 int val;
93
94 // set some very aggressive keepalive parameters
95 val = 10;
96 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
97 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
98
99 val = 5;
100 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
101 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
102
103 val = 1;
104 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
105 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
106 }
107#endif
108 136
109 { 137 {
110 int bufsize = 65535; /*Supposed absolute upper limit */ 138 int bufsize = 65535; /*Supposed absolute upper limit */
111 int oldbufsize; 139 int oldbufsize;
112 int buflen = sizeof (int); 140 int buflen = sizeof (int);
… …
129 mapmode = Map0Cmd; 157 mapmode = Map0Cmd;
130 darkness = 1; 158 darkness = 1;
131 mapx = 11; 159 mapx = 11;
132 mapy = 11; 160 mapy = 11;
133 itemcmd = 1; /* Default is version item1 command */ 161 itemcmd = 1; /* Default is version item1 command */
134 162 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
135 faces_sent = salloc0<uint8> (nrofpixmaps);
136 163
137 /* Do this so we don't send a face command for the client for 164 /* Do this so we don't send a face command for the client for
138 * this face. Face 0 is sent to the client to say clear 165 * this face. Face 0 is sent to the client to say clear
139 * face information. 166 * face information.
140 */ 167 */
141 faces_sent[0] = NS_FACESENT_FACE; 168 faces_sent[0] = true;
142 169
143 socket_ev.prio (PE_PRIO_NORMAL); 170 socket_ev.prio (PE_PRIO_NORMAL);
144 socket_ev.fd (fd); 171 socket_ev.fd (fd);
145 socket_ev.poll (PE_R); 172 socket_ev.poll (PE_R);
146 173
… …
157 184
158client::~client () 185client::~client ()
159{ 186{
160 clients.erase (this); 187 clients.erase (this);
161 188
162 sfree<uint8> (faces_sent, nrofpixmaps);
163 free (stats.range); 189 free (stats.range);
164 free (stats.title); 190 free (stats.title);
165 free (host); 191 free (host);
166} 192}
167 193
… …
212 last_weight_limit = 0; 238 last_weight_limit = 0;
213 last_path_attuned = 0; 239 last_path_attuned = 0;
214 last_path_repelled = 0; 240 last_path_repelled = 0;
215 last_path_denied = 0; 241 last_path_denied = 0;
216 last_speed = 0; 242 last_speed = 0;
217 flags = 0; 243 last_flags = 0;
218 244
219 static living zero_living; 245 static living zero_living;
220 last_stats = zero_living; 246 last_stats = zero_living;
221} 247}
222
223/** This sets up the socket and reads all the image information into memory. */
224void
225init_ericserver (void)
226{
227 cst_tot.time_start = time (NULL);
228 cst_lst.time_start = time (NULL);
229
230 LOG (llevDebug, "Initialize new client/server data\n");
231
232 read_client_images ();
233}
234
235 248
236/******************************************************************************* 249/*******************************************************************************
237 * 250 *
238 * Start of functions dealing with freeing of the data. 251 * Start of functions dealing with freeing of the data.
239 * 252 *

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